I tested the WHOOP 4.0 vs Apple Watch Ultra 2 battery in real-world conditions – and one lasted way longer
Battery life is major factor in play when deciding which fitness tracker a consumer should go with. So how do two of the leading brands, WHOOP and Apple Watch, fare in this department?
I tested the Ultra 2 and WHOOP 4.0 battery life in a head-to-head battle over the course of week until both devices died, and you may be surprised about how long each lasted.
Test Setup
- To make this battery test as fair as possible, I made sure both devices were fully charged by the time I started the test on Sunday morning at 9am.
- Each night around 9pm, I logged the current battery percentage of each device.
- Both devices were worn to sleep.
- My Apple Watch stayed on silent, but does get push notifications and phone calls to it. The display was also set to ‘always on’, and GPS and location services remained on as well.
- The WHOOP doesn’t have any customizable options.
- I use alarms on both devices each morning.
Day 1: Sunday
Ultra 2 Usage
- 1.1 mile walk
- 10 minute row workout
- 61 minute weightlifting
- 5,598 steps
- Used flashlight for 2 minutes
- Set a few timers throughout the day
- Asked Siri 3 questions
WHOOP Usage
- 1.1 mile walk
- 10 minute row workout
- 61 minute weightlifting
End of Day Results
- Apple Watch Battery = 77%
- WHOOP Battery = 91%
Day 2: Monday
Ultra 2 Usage
- 10 minute row workout
- 39 minute weightlifting
- 4,248 steps
- Set a few timers throughout the day
- Asked Siri 7 questions
WHOOP Usage
- 10 minute row workout
- 39 minute weightlifting
End of Day Results
- Apple Watch Battery = 34%
- WHOOP Battery = 74%
Day 3: Tuesday
Utra 2 Usage
- 10 minute row workout
- 60 minute weightlifting
- Set a few timers throughout the day
WHOOP Usage
- 10 minute row workout
- 60 minute weightlifting
- 20 min walk
End of Day Results
- Apple Watch Battery = 0% at 5:10pm
- WHOOP Battery = 45%
Day 4: Wednesday
WHOOP Usage
- 1.6mi walk
End of Day Results
- Apple Watch Battery = 0%
- WHOOP Battery = 34%
Day 5: Thursday
WHOOP Usage
- 1hr 15min weightlifting
- 10min row workout
- 1hr 4 min of stacking wood
End of Day Results
- Apple Watch Battery = 0%
- WHOOP Battery = 16%
Day 6: Friday
WHOOP Usage
- 45min weightlifting
- 10min row workout
End of Day Results
- Apple Watch Battery = 0%
- WHOOP Battery = 1%
WHOOP 4.0 vs Apple Watch Ultra 2 Battery Life Comparison Chart
Concluding Insights and Battery Performance
The WHOOP 4.0 dominated in battery longevity, lasting a notable 137 hours or nearly 6 days with moderate use.
In contrast, the Apple Watch Ultra 2 exhausted its battery in just over 2 days, or 56 hours.
While the Apple Watch offers a range of features, it sacrifices battery duration. WHOOP 4.0’s focused functionality gives it an edge in battery performance.
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